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https://issues.apache.org/jira/browse/BEAM-2445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17155856#comment-17155856
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Beam JIRA Bot commented on BEAM-2445:
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This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> DSL SQL to use service locator pattern to automatically register UDFs
> ---------------------------------------------------------------------
>
> Key: BEAM-2445
> URL: https://issues.apache.org/jira/browse/BEAM-2445
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql
> Reporter: Luke Cwik
> Assignee: Mingmin Xu
> Priority: P2
> Labels: stale-assigned
>
> Use a service locator pattern to find UDFs that can be registered. The
> service loader can be used to register UDFs for standard functions via DSL
> SQL, additional UDFs registered by third party libraries, and end user
> created UDFs.
> Example ServiceLoader usage within Apache Beam to find coder providers:
> https://github.com/apache/beam/blob/7126fdc6ee5671e99a2dede3f25ba616aa0e8fa4/sdks/java/core/src/main/java/org/apache/beam/sdk/coders/CoderRegistry.java#L147
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